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中文摘要：
采用同轴静电纺丝技术,以硝酸铝、正硅酸乙酯、无水乙醇、聚乙烯吡咯烷酮和N,N-二甲基甲酰胺为原料,成功制备了Al2O3/SiO2同轴超微电缆。用差热-热重分析、X射线衍射、扫描电镜、透射电镜、Fourier变换红外光谱对样品进行了表征。结果表明：所得到的产物为Al2O3/SiO2同轴超微电缆,以无定型SiO2为壳层,晶态Al2O3为芯轴,电缆直径在150～300nm之间,壳层厚度为50nm,电缆长度〉450μm。对Al2O3/SiO同轴超微电缆的形成机理进行了分析。
英文摘要：
Al2O3/SiO2 coaxial ultromicro-cable was prepared by coaxial electrospinning technique using Al（NO3）3,C8H20O4Si,ethanol,polyvinylpyrrolidone and N,N-dimethylformamide as staring materials.The samples were characterized by thermogravimetric-differential thermal analysis,X-ray diffraction,scanning electron microscope,transmission electron microscopy and Fourier transform infrared spectroscopy techniques.The results show that the as-prepared coaxial nanocable with a diameter of 150-300 nm and shell thickness of 50 nm has a crystalline Al2O3 core and an amorphous shell of SiO2.The length of the Al2O3/SiO2 nanocable is greater than 450 μm.The formation mechanism of the Al2O3/SiO2 nanocable is preliminarily investigated.
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